The samples were marked with a 20 watt q-switched ytterbium fiber laser with 160 mm focal length lens. The paint film was ablated using 18 watts of power, frequency of 30 kHz. Due to the fact that the tallest marking would be in the 3 to 4 inch range, the 160-mm focal length lens with 4.3” x 4.3” marking field was used in the application. The longer focal length lens was recommended to be used for marking larger area. The paint film on the largest trunk finisher looked thicker than that on other parts so that more passes of lasing were applied.